Due to the release of update 1.77 and the reworking of the collision model with new terrain technology, all custom assets (included custom hangars) need to be optimized. You can wait until the authors have updated the content on War Thunder Live or just download the latest CDK version and reload (download and upload) assets/missions, hangars and other content.

The basic textures for some ground vehicles have been changed. In the config of the custom camouflage you will need to change the name of the texture according to the list or download the camouflage from LIVE once again.